Joseph Macheca Collection (Mss 151)
Charles Maduell Collection (Mss 261)
Magnolia Cemetery Collection (Mss 174)
James J. Manson Collection (Mss 102)
Rosalee McReynolds Collection
Melrose Plantation Auction Tape (Mss 248)
J. Ben Meyer Collection (Mss 375)
Ethel Midlo Collection
Herman Lazard Midlo Collection (Mss 107)
Military Order of the World Wars, New Orleans Chapter Collection (Mss 129)
K. Raeburn Miller Collection (Mss 226)
Michael J. Molony, Jr. Collection (Mss 146)
Monnot / Lanier Family Collection (Mss 48)
Frank B. Moore Collection (Mss 145)
Paul Morand Collection (Mss 38)
Gen. David Bannister Morgan Collection (Mss 253)